Mike henry



- UNITED STATES PATENT OF IC MIKE HENRY, 0F WESSON, MISSISSIPPI, ASSIGNOR OF ONE-HALF TO WILEY E. OLIVER, 0E AME PLACE.

COLLAR-BUTTON.

SPECIFICATION forming part of Letters Patent No. 506,399, dated October 10, 1893.

Application filed January 9,1893- Serial No. 457,748- (No model.)

To all whom it may concern:

Be it known that I, MIKE HENRY, a resident of Wesson, in the county of Copiah and State of Mississippi, haveinvented certain new and useful Improvements in Collar-Buttons; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

The invention relates to collar or sleeve buttons or studs made of separable parts which in practice can be disconnected or joined at pleasure; and it has for its object to provide a simple and economical device of this character that Shall combine security of operation with ease and certainty of manipulation; and it consists in the construction hereinafter described and particularly pointed out.

In the accompanying drawings Figure 1 is a central longitudinal section. Fig. 2 is a section of a modification. Fig. 3 isa plan of a blank to form the stem of the part 4 shown in Figs. 1 and 2 to more clearly indicate the form of the groove constituting a part of an improved bayonet joint.

The figures are drawn on an enlarged scale.

Numeral 1 indicates the head of the button and 2 a tubular stem attached thereto. This is provided with a pin or projection 3 conveniently made by suitably indenting the wall of the tube. This tube firmly secured to the head 1 is large enough to embrace the stem4 made fast on the under side of the small head or cap 5. The stem 4 is provided with oblique grooves 6 each communicating at its foot with a vertical recess 7 adapted to receive the projection 3 when the stem 4 is entered in tube 2. Said projection at such time passes down the inclined or oblique groove 6 one or both of the stems being suitably turned. In this operation the spring 8 having a bearing plate or cap 9 is compressed by the pressure thereon of the stem 4. To provide a constant and secure bearing for the spring and prevent the tube 4 from either entering it or being entered by it the plate 9 having a stem projecting into the coils of the spring is placed at the inner end of said tube. The head or cap 5 on its under side is provided with a recess or well to the bottom of which the stem is secured. This recess has a larger diameter than the stem 4 whereby space is provided for the tubular stem 2 to enter the same far enough to compress the spring Sand permit the projection 3 to be thrown by said spring into the vertical recess 7 of the groove of the bayonet joint. The .recess 10 has such depth and the parts are so proportioned that the end of tube 2 willremain concealed and protected within the recess 9 until the projection is passed out into groove 6 preparatory to the entire separation of the parts. When the stem 4 has thus been entered within the tube 2 and projection 3 passed down to the bottom of the groove 6 said projection is in position to be moved into the recess 7 by the spring when the latter is relieved from pressure. In this position the parts are securely locked and the open ends of the stem covered in manner to exclude lint or dirt. To Separate the parts the cap 5 and head 4 are pressed toward each other to compress the Spring and pass projection 3 out of its retaining recess so that the stems can be slightly turned and projection 3 drawn out of groove 6 and the parts separated.

I am aware that the stems of separable buttons have been connected by abayonet joint and such device is not broadly of my invention. By myimproved construction the groove 6 is inclined and-is in form a regular curve from the mouth of the recess 7 so that the engagement of the parts after the pins are placed at the entrance of Said groove 6-is effected by a single movement which movement also compresses the Spring. And conversely when the pins are brought to the mouth of the recesses a single movement separates the parts which operations in prior devices required two distinct movements. Further in prior constructions slots have been formed in the exterior tube cutting through the wall thereof to permit the pin on the inner post to extend 7 through the same whereby an opening to ad:

mit dirt was produced. In one instance this I open slot was formed in a distinct tube and covered by an exterior one two concentric tubes and a post being employed. In myimprovement curved grooves are formed in the wall of an inner tube and corresponding pins on the interior of the exterior tube, and all lateral openings through the latter avoided.

By making the inner post tubular metal is and a spring to hold said projection in the saved and both these tubes being made of recess said spring having a bearing plate 9, sheet metal the grooves and pins can be readsubstantially as set forth. ily formed in the blanks such as shown in In testimony whereof I have signed this 15 5 Fig. 3 before the tubes are formed. specification in the presence of two subscrib- 1f-Iavling thus fully described my invention, ing witnesses. w at claim is- The button having tubular stem 2 provided MIKE HENRY with an indentation 3, tubular stem 4 prol Witnesses: to vided on its exterior with the oblique curved E. H. THOMPSON,

groove 6 which communicates with a recess 7 l MONROE SMITH. 

